Doug Duran/staff

Deer Valley High School graduates Sydney Foster, 18, left, helps classmate Alexis Garcia, 17, with her mortarboard before the start of their commencement ceremony in Antioch on June 5.

SUSAN TRIPP POLLARD/STAFF

Graduates from the class of 2014 at Antioch's Dozier-Libbey Medical High School move their tassels during their graduation ceremony held at Deer Valley High School on June 4.

Doug Duran/staff

Heritage High School graduates celebrate after their commencement ceremony on Saturday.


Deer Valley High School graduates Sydney Foster, 18, left, helps classmate Alexis Garcia, 17, with her mortarboard before the start of their commencement
Deer Valley High School graduates Sydney Foster, 18, left, helps classmate Alexis Garcia, 17, with her mortarboard before the start of their commencement ceremony in Antioch, Calif., on Thursday, June 5, 2014. (Doug Duran/Bay Area News Group)


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Heritage High School graduates celebrate after their commencement ceremony in Brentwood, Calif., on Saturday, June 7, 2014. (Doug Duran/Bay Area News
Heritage High School graduates celebrate after their commencement ceremony in Brentwood, Calif., on Saturday, June 7, 2014. (Doug Duran/Bay Area News Group)